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by cwillu 421 days ago
Dunno. Like I said, there's no way to do this effectively without some form of leverage over the counter-party. This sort of thing is why SCIF's exist, and is an example of the more extreme ends of leverage, but it still ultimately comes down to leverage: they can make you delete the message and will throw you in jail if you figure out a way to evade it.

One-time secret, maybe?